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ASTM A131 marine grade DH40 offshore platform steel plate for sale

Description: ASTM A131 marine grade DH40 offshore platform steel plate is high strength shipbuilding steel with -20℃ low temperature impact test requirements. DH40 offshore ...

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ASTM A131 marine grade DH40 offshore platform steel plate is high strength shipbuilding steel with -20℃ low temperature impact test requirements. DH40 offshore platform steel plate thicker than 1/4 in. [6.4 mm] shall do Charpy V-notch test. DH40 offshore platform steel plate usually comes with certificates of ABS, LR, BV, DNV GL, RINA, NK, CCS, KR, or RMRS as your requirements. For DH40 offshore platform steel plate and so on shipbuilding steel, BBN steel will offer EN10204 3.2 MTC.

ASTM A131 marine grade DH40 offshore platform steel plate chemical composition:
(heat analysis, % max unless otherwise specified)

C	Si	Mn	P	S	Al Min.	Cb	V	Ti	Cu	Cr	Ni	Mo	Ca	N
0.18	0.10-0.50	0.90-1.60	0.035	0.035	0.015	0.02-0.05	0.05-0.10	0.02	0.35	0.20	0.40	0.08	0.005	-

Notes: 1) The contents of any other element intentinally added is to be determined and reported.
2) If the content of soluble aluminum is not less than 0.015 %, the minimum required silicon content does not apply.
3) The indicated amount of aluminum, columbium (niobium), and vanadium applies if any such element is used singly.
4) Ca element need not be reported on the mill sheet unless intentionally added.

ASTM A131 marine grade DH40 offshore platform steel plate mechanical property:

Grade		Strength		Charpy V Impact Test
Grade	Thickness	Yield strength	Tensile strength	Temperature	Transverse	Longitudinal
DH40	mm	Min Mpa	Mpa	-20℃	J	J
	t≤50	390	510-650		26	39
	50<t≤70	390	510-650		31	46
	70<t≤100	390	510-650		37	55

DH40 offshore platform steel equivalent grades:

ABS	LR	BV	DNV	GL	RINA	NK	CCS	KR	RMRS
D40	DH 40	DH40	NV D40	GL-D40	DH40	KD40	D40	RD 40	D40

The delivery state of ASTM A131 marine grade DH40 offshore platform steel plate can be normalized, control rolled, thermomechanical control processed, or quenched and tempered. The Z direction test such as Z15, Z25, Z35 is also available. DH40 offshore platform steel plate is widely applied to build the offshore oil drilling platform, to build hull of ships and the cranes of break bulker and vessels in low temperature oceans.

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